Distance traveled in response to different odorants.

Percentage of animals in the sections closest to the point sources of chemicals or diluent (A and E) in the chemotaxis assays. Wild-type animals traveled further on the plate than bbs-7(my13) animals when only ethanol, the diluent, was present on the plate (p-values: at 10 minutes = 0.00158, at 20minutes = 0.000525, at 30minutes = 0.00873). In the presence of a strong repellent (100% benzaldehyde) or a strong attractant (1% diacetyl), both wild-type and bbs-7(my13) animals travel similar distances on the assay plate (p-values for 100% benzaldehyde: at 10 minutes = 0.150, at 20 minutes = 0.375, at 30 minutes = 0.08501; p-values for 1% Diacetyl: at 10 minutes = 0.589, at 20 minutes = 0.322, at 30 minutes = 0.0681). Value in parentheses indicates standard error of the mean. Distance traveled in response to different odorants.